Table 4-3. 'P2 | Remote' Connector Pinouts - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710/L Broadcast Satellite Modem
Rear Panel Connectors
Item 8 – 'P2 | Remote' Serial Management Utility Connector
This DB-9M connector is intended for connection to an M&C computer or terminal
device. It is user selectable for either EIA-232 or EIA-485 (2-Wire/4-Wire) operation.

Table 4-3. 'P2 | Remote' Connector Pinouts

Pin # Description
1 Ground
2 RS-232 Transmit Data
3 RS-232 Receive Data
4 Not Used
5 Not Used
6 RS-485 Receive Data B*
7 RS-485 Receive Data A*
8 RS-485 Transmit Data B
9 RS-485 Transmit Data A
* Use for 2-Wire EIA-485 operation
Item 9 – 'J3 | Rx (Receive)' IF Connector
CAUTION
THERE MAY BE DC VOLTAGES OF UP TO 48 VOLTS MAXIMUM PRESENT
ON THIS CONNECTOR.
Use this connector for Rx operation:
• CDM-710 (70/140 MHz) – BNC female connector
• CDM-710L (L-Band) – Type 'N' female connector
Item 10 – 'J6 | Async Channel' Utility Connector
1) Asynchronous Engineering Channel operation is not
implemented in the CDM-710/L; this DB-9F connection is
therefore non-operational.
2) This connection exists on Rev. A and later chassis only. The
original production unit provided an RJ-45 connector, labeled
'J6 | SerDes'. It served as a private communications link and
was not intended for customer use.
(NOT USED)
4–13
MN/CDM710.IOM
Revision 12
Direction
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Out
In
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In
In
Out
Out